Tentative and Hedged Requests in Technical English

"Would you mind adding tests for this function?" is the most tentative and diplomatic form: "would you mind" + gerund is one of the softest request structures in English, framing the ask as a favor rather than an instruction, which is well suited to code review comments where tone matters for team relationships. Option A is a bare imperative with no softening at all. Option B uses the obligation modal "must", which is direct and can come across as commanding rather than requesting. Option D adds "please" to an imperative, which is more polite than a bare command but still noticeably more direct and less tentative than the hedged question form in option C.

"I was wondering if you could extend" is correct: "I was wondering if" (past continuous, even though it refers to the present moment) followed by "could" is a fixed, highly tentative request pattern — the past tense form ("was wondering" rather than "am wondering" or "wonder") adds an extra layer of psychological distance and politeness, a common feature of hedged English requests. Option B incorrectly uses "that" instead of "if" after "wondering" in this request pattern. Option C incorrectly mixes "can" with a gerund ("extending") instead of the base form after "could". Option D ("I wonder if...") is a valid but noticeably more direct and less tentative version than the past continuous form, since present tense here reads as more immediate and less softened.

"I was hoping you could possibly walk me through... if you have a moment" stacks multiple hedging devices — "I was hoping" (tentative past framing), "could possibly" (double softening with modal + adverb), and the conditional tag "if you have a moment" (giving an easy out) — making it the most diplomatically cushioned option for a junior asking a senior a potentially sensitive question about their design choices. Option A is a direct question that, while not rude, offers no softening and could sound like a challenge in a sensitive context. Options C and D are bare imperatives, which are too blunt for this power-distance and social context, even though they are grammatically correct commands.

"Could you possibly review" is correct: "could" (modal) + "possibly" (adverb softening the request) + base verb form is the standard structure — the adverb "possibly" is inserted between the modal and the main verb without needing "to" or a gerund, since "review" remains a bare infinitive after the modal "could". Option B incorrectly inserts "to" before the base verb, which is never used directly after a modal verb. Option C incorrectly uses the gerund "reviewing" instead of the base form required after a modal. Option D confuses the adverb "possibly" with the adjective "possible", which cannot grammatically sit between a modal and a main verb.

"Send us the logs now." is the least appropriate for a customer-facing professional context: it is a bare imperative with the added time pressure of "now", which reads as demanding and lacks any of the softening devices expected in polite business correspondence. The other three options all use recognized hedging patterns — "could you... when you get a chance" (modal + flexible time frame), "would it be possible to" (passive, impersonal hedge that avoids directly naming who must act), and "I was wondering if you might be able to" (stacked tentative framing with "might" and "be able to") — all of which soften the request appropriately for addressing a customer.